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The File Extension Library

What is a file extension?

Short answer: it's the set of letters after the period (.) in the name of a file.

Long answer: File extensions signify the file format of a file. It tells the operating system (OS) how data was stored in the file. Not all OS, require a file extension though. For instance, this is optional in Unix, but is mandatory with MS-DOS and Windows systems.

In most file formats the file type is actually defined by the contents (first bytes, file structure), but extensions are used to define the application that is used for opening the file.

Below is a detailed database of thousands of file extensions our team has compiled for you. Feel free to browse!


Browse all Extensions:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
ANS - Extension Details
Date Added: January 01, 1970
File Extension:  .ANS
Description 1: .ANS file extension is linked with ANSYS Model Data. This file extension is for the model data utilized by ANSYS applications. ANSYS is an engineering simulation software company that is founded by John Swanson. The company has developed a wide range of computeraided engineering products, but it is known for developing the ANSYS Multiphysics and ANSYS Mechanical products.
File Type:   Data file
Mode: ASCII
Program(s) to Open:  utilized by ANSYS applications
Common:
Extension: